Machine for forming bottle-necks.



9 9 mm 27 2 r g u A d e t n e t a DI a f i MACHINE FOR FORMING, BOTTLE NEGKS.

v I (Apphcahon filed Feb 17 1699) (I0 Model.)

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UNITED STATES PATENT OFFICE.

ALEXANDER J. RUDOLPH, OF CHICAGO, ILLINOIS.v

MACHINE FOR FORMING BOTTLE-NECKS.

SPECIFICATION forming part of Letters Patent No. 631,586, dated August 22, 1899.

Application filed February 17, 1899. $erial No. 705,879. (No model.)

To all whom it may 007 11007 12.-

Be it known that I, ALEXANDER J. RU- DOLPH, a citizen of the United States, residing at. Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in- Machines for Forming Bottle-Necks, of which the following is a specification.

My invention relates to that class of machines for forming bottle-necks which are adapted to size, shape, and finish the exterior and interior surface of the necks of glass bottles while such necks are in a heated ductile condition.

The principal object of my invention is to provide a machine for forming a bottle-neck with means for adjusting its roll and forming mechanism longitudinally; and the invention consists in the features, combinations, and details of construction hereinafter described and claimed.

In the accompanying drawings, Figure l is a side elevation of a portion of a machine, partly in section, constructed in accordance with my improvements; Fig. 2, a plan View of the mechanism shown partly in section in Fig. 1; and Figs. 3 and 4 sectional detail views of the forming-plug.

In illustrating and describing myimprove-v ments I have only illustrated and described those portions of the mechanism which I consider to be new, taken in connection with so much that is old as will enable those skilled in the art to practice the invention, leaving out of consideration other and well-known mechanisms which, if described and illusambiguity, and confusion.

In constructing a machine in accordance with my improvements I provide a rotatable mandrel A, which is adapted to :carry all the operative parts. The front portion of this mandrel is provided witha forming-plug B, which, as shown in Figs. 1 and 2, is composed of two studs 12, secured to the front portion of the mandrel and connected together at their outer ends by means of an arrow-head I), each of the studs carryingaroll 12 During the rotation of the mandrel this forming-plug is adapted to enter the opening in the bottleneck and size and finish the same.

In Figs. 3 and 4 I have shown a modified form of forming-plug, which consists of asupporting-pin C, secured in the rotatablemandrel and which at the front portion thereof is provided with an arrow-head c. This arrowhead carries a number of loose rolls 0, arranged at an incline, so that as they strike the material in the opening of the bottle-neck they will rotate and gradually crowd the same out to meet the other mechanism, as hereinafter described. The pin is provided with a loosely-rotatable shell 0, which is the forming-plug proper and which will under certain conditions rotate with the material forming the neck of the bottle or revolve freely therein. For instance, if the interior opening of the bottle-neck is larger than the formingplugand but one forming-roll is used to form the exterior of the bottle-neck, this sleeve will freely rotate on its supportingpin, but if the opening of the bottle-neck be the same size as this shell and one or more forming rolls or 'dies be used 011 the exterior, then the shell will rotate with the bottle.

To size and shape the exterior of the bottleneck, I prefer to use a pair of forming-rolls D and D, which are rotatably mounted upon parallel bars E and whichhave adjustable extensions made in two threaded sections eand 8, connected together by means of a turnbuckle E. The parts are so arranged that the lock-nuts 6 may be loosened and the forming-rolls moved backwardly and forwardly longitudinally to provide for any-sized lip on the bottle-neck. These extensions of the parallel bars operate in slots g of a rotatable disk G, which is mounted in the standard 3 H and which permits the forming-rolls tobe moved toward or from the axis of the rotatable mandrel.

To assist in forming a lip on the neck ofa bottle, I provide what I term a shoulder portion I, which has two radially-extending arms 1I,made integral therewith and bent backwardly at their outer ends at 2', so as toextend through the disk H and backwardly therefrom. To move this shoulder portion backwardly and forwardly, I provide a recip rocatingdisk or sleeve K, which is secured to the backwardly-extending arms of the shoulder portion, as shown particularly in Figs. 1 and 2. I-Ielical coiled springs surround these backwardly-extending arms of the shoulder too and are interposed between the disk H and the sliding disk K, so that as the disk K moves forwardly, as hereinafter described,the sho ulder is also moved forward, but when released the helical springs tend to move the parts back to their normal position.

In order to operate the parts, an operatingsleeve L is slidingly mounted on the rotatable mandrel, so as to rotate therewith but have independent rectilinear movements. This operating-sleeve is provided with lugs L and L and is connected with the parallel bars by means of the links Z, so that during their forward motion the parallel bars are moved inwardly and during their backward motion are moved outwardly. During the forward movement of the operating-sleeve one of the shoulder portions is adapted to contact set-screws Min the sliding disk and move such disk, with the shoulder portion, forwardly. The stopnut N limits the backward hold of the sliding disk, and consequently regulates the normal position of the shoulder. If the stopscrews M be moved forward so as to come within the plane of the stop-nut, the forward motions of the operating-lever will not alfect the shoulder in any way whatever, and from an inspection of the drawings it will be seen that the position of these stop-screws regulates the amount of movement to be given to the shoulder portion.

The rotatable mandrel may be mounted in any kind of a head-stock, and a bell-crank or other kind of lever used to engage with the annular groove in the operating-sleeve to give such sleeve its forward and backward movements and consequently operate the parts.

I claim- 1. In a machine of the class described, the combination of a rotatable mandrel, a forming-plug in the front portion thereof comprising a loosely-rotatable shell, and an arrowhead provided with one or more inclined rolls, substantially as described.

2. In a machine of the class described, the combination of a rotatable mandrel, a forming-plug in the front part thereof, roll mechanism for forming the exterior of a bottleneck, a parallel bar for each forming-roll made in two parts, means for adjustably conneeting the part carrying the forming-roll with the other part parallel to each other and to the mandrel, and means for moving the bar with its forming-roll toward or from the axis of the rotatable mandrel, substantially as described.

3. In a machine of the class described, the combination of a rotatable mandrel, a forming-plug in the front part thereof, roll mechanism for forming the exterior of a bottleneck, a longitudinally-adj ustable bar for each forming-roll, means for moving the bar with 1 its forming-roll toward or from the axis of retation of the rotatable mandrel,a shoulder portion for forming the lip of a bottle-neck provided with backwardly-extending arms arranged parallel with the rotatable mandrel and adapted to rotate therewith, a sliding disk or similar element secured to the shoulder-arms and adapted to be moved backwardly and forwardly, and an operatingsleeve for moving the disk orsimilar element with the shoulder portion backward and forward, substantially as described.

4. In a machine of the class described, the combination of a rotatable mandrel, a forming-plug in the front part thereof, roll mechanism for forming the exterior of a bottleneck, a parallelmovable bar made in atleast two sections, means for adjustably holding the sections together, a shoulder portion surrounding the forming-plug provided with a backwardly-extending arm or arms, a disk or sleeve surrounding the rotatable mandrel and secured to the bacluvardly-extending arms of the shoulder, and means for operating the disk or sleeve portion backwardly and forwardly and the forming-roll mechanism inwardly and outwardly, substantially as described.

5. In a machine of the class described, the combination of a rotatable mandrel provided with a forming-plug in the front part thereof, a disk on the front portion provided with radial slots in the rotatable mandrel, roll mechanism for forming the exterior of a bottleneck, a longitudinally-adjustable bar passed through the radial slots in the disk for adjustably holding and moving the formingrolls backwardly or forwardly, a shoulder portion for forming the lip of a bottle-neck provided with at least two arms bent backwardly therefrom, a sliding disk or similarelement secured to the backwardly-extendin garms of the shoulder portion, spring mechanism interposed between the slotted disk and the sliding disk to hold the shoulder in its normal back position, an operating-sleeve slidingly mounted on the rotatable mandrel, link mechanism interposed between the operating sleeve and the parallel-bar mechanism to operate the forming-roll mechanism inwardly and outwardly, a nut or collar on the rotatable mandrel to limit the backward movement of the shoulder mechanism, and adjustable screws in the sliding disk or similar element adapted to be contacted by the operatingsleeve and regulate the movements of the shoulder portion, substantially as described.

ALEXANDER J. RUDOLPH.

Vtitnesses:

THOMAS F. SHERIDAN, THoMAs B. MCGREGOR. 

